Brooke Hogan, Hulk's daughter, splits with Cowboys' Phil Costa

Christie D'Zurilla

Brooke Hogan, daughter of Hulk Hogan, is a single lady again.

Brooke, 25, had been engaged to 26-year-old Phil Costa, a Dallas Cowboys center, since the end of June. She called off the betrothal a few weeks ago, TMZ reported Friday, saying things had moved too far, too fast.

Indeed, she'd appeared quite in love when Costa popped the question.

"Happiest moment of my LIFE. I am marrying my best friend. I wouldn’t choose anyone else. I am so lucky and so grateful,” the singer-actress-model wrote on Instagram at the time, posting pictures of the Las Vegas proposal.

How things change. Witness the ring-free, belly-revealing shot she posted last week, captioned, "Moms shirt from the 80s. No joke, still cool."

She now wants to focus on her music career, TMZ said.

"Brooke moved back to L.A. a couple of weeks ago to be closer to her mom Linda Hogan and she is currently in the studio working on her album," a rep told E! Online, noting that the album should be out next spring.

Brooke Hogan had a taste of reality-TV fame a few years back with VH1's "Hogan Knows Best," which started taping when she was only 16. After three years, she spun off into her own "Brooke Knows Best" for a couple of years.